diff --git a/ci/dockerimage/Dockerfile b/ci/dockerimage/Dockerfile
index 1ab57bf44d..2eb295239b 100644
--- a/ci/dockerimage/Dockerfile
+++ b/ci/dockerimage/Dockerfile
@@ -124,7 +124,10 @@ COPY --from=gomplate /bin/gomplate /usr/bin/gomplate
 RUN mkdir /usr/local/busybox \
  && busybox --install /usr/local/busybox
 ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/busybox
-RUN wget -O /usr/local/bin/tika.jar https://dlcdn.apache.org/tika/2.9.3/tika-app-2.9.3.jar
+# install latest version of tika 2.9.*. (Expects apache to only serve on version of tika 2.9.*)
+RUN tika_version=$(curl https://dlcdn.apache.org/tika/ | grep -oh '<a href="2.9.[0123456789]*/">' | cut -d '"' -f 2 | cut -d / -f 1) \
+ && curl https://dlcdn.apache.org/tika/${tika_version}/tika-app-${tika_version}.jar --output /usr/local/bin/tika.jar \
+ && echo $(curl https://dlcdn.apache.org/tika/${tika_version}/tika-app-${tika_version}.jar.sha512) /usr/local/bin/tika.jar | sha512sum -c
 RUN addgroup --system -gid 150 tine20 && \
     adduser --system --no-create-home --disabled-password --shell /bin/bash --gecos "tine20 user" --ingroup tine20 --uid 150 tine20 && \
     mkdir -p /etc/tine20/conf.d && \